Your thinking is correct. At the end of the day, it would probably look like this:
void Keypressed()
{
if (kbhit())
{
keypress =getch();
switch (keypress )
{
case key_F1:
displayHelp();
break;
case key_LEFT:
case key_RIGHT:
break;
case key_UP:
PlayersPad.y-=3;if (PlayersPad.y<0) PlayersPad.y=0;
break;
case key_DOWN:
PlayersPad.y+=3;if (PlayersPad.y>18) PlayersPad.y=18;
break;
case key_ENTER:
break;
case key_SPACE:
break;
case key_TAB:
autoPlay=-autoPlay;
if (autoPlay>0)
{
setcolor(79);gotoxy(62,23);printf("cheat on " );setcolor(15);
}
else
{
setcolor(79);gotoxy(62,23);printf("cheat off " );setcolor(15);
}
break;
}
}
}
![enter image description here]()
And as an added bonus, here is code to a Pong game i have written, its a player vs player or player vs computer.
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <time.h>
#include <iostream.h>
#include <math.h>
#include <fstream.h>
#define Black 0
#define Blue 1
#define Green 2
#define Cyan 3
#define Red 4
#define Magenta 5
#define Yellow 6
#define White 7
#define Gray 8
#define LightBlue 9
#define LightGreen 10
#define LightCyan 11
#define LightRed 12
#define LightMagenta 13
#define LightYellow 14
#define BrightWhite 15
#define key_F1 59
#define key_UP 72
#define key_DOWN 80
#define key_LEFT 75
#define key_RIGHT 77
#define key_SPACE 32
#define key_ENTER 13
#define key_ESCAPE 27
#define key_TAB 9
#define key_INSERT 82
#define PONG_WIDTH 78
#define PONG_HEIGHT 22
#define PONG_SCREEN_RIGHT PONG_WIDTH-3
#define PONG_SCREEN_LEFT 5
#define PONG_SCREEN_TOP 2
#define PONG_SCREEN_BOTTOM 22
struct t_ball{ int x,y,headingX,headingY;};
struct t_pad{ int x,y,LEFT,RIGHT;};
int temp,kbChar;
int _key=0;
unsigned long OldTicksPerSecond=GetTickCount(),NewTicksPerSecond=GetTickCount();
unsigned long PreferredFramesPerSecond;
unsigned long DeltaTicksPerSecond;
unsigned int frames=0;
float fps=60.0f;
float Refesh;
float InverseFramesPerSecond;
float OneFramePerSecond;
int keypress=0;
t_ball ball;
t_pad PlayersPad,computersPad;
int autoPlay,playersScore,computersScore;
void moveBall();
void runGame();
void initGame();
void Keypressed();
void gameLogic();
void removeBall();
void displayHelp();
void displayYouMissed();
void displayCheatEnabled();
void Render_Game_At_60_Frames_Per_Second();
void getKey();
void gotoxy(int x, int y);
void setcolor(WORD color);
void textColor(unsigned char fColor,unsigned char bColor);
void clrscr();
void delay(int milliseconds);
void txtPlot( unsigned char x, unsigned char y, unsigned char Color);
void txtLine( int xx1, int yy1, int xx2, int yy2 ,int color);
void clrbox(unsigned char x1,unsigned char y1,unsigned char x2,unsigned char y2,unsigned char bkcol);
void box(unsigned x,unsigned y,unsigned sx,unsigned sy,unsigned char col,unsigned char col2,char text_[]);
void putbox(unsigned x,unsigned y,unsigned sx,unsigned sy,
unsigned char col, unsigned char col2,unsigned char bkcol,char text_[]);
int main()
{
runGame();
return 0;
}
/*********************************
* runGame()
********************************/
void runGame()
{
initGame();
while (keypress !=key_ESCAPE)
{
Keypressed();
gameLogic();
moveBall();
Sleep( 50 );
removeBall();
setcolor(31);gotoxy(7,22);printf("ball X=%d,Y=%d ",ball.x,ball.y );setcolor(15);
setcolor(31);gotoxy(7,23);printf("pad X=%d,Y=%d ",PlayersPad.x,PlayersPad.y );setcolor(15);
setcolor(31);gotoxy(32,22);printf("Your Score: %d ", playersScore );setcolor(15);
setcolor(79);gotoxy(32,23);printf("Computers Score: %d ", computersScore );setcolor(15);
}
}
/*********************************
* moveBall()
********************************/
void moveBall()
{
txtPlot( ball.x,ball.y,15);
txtLine(PlayersPad.x,PlayersPad.y,PlayersPad.x,PlayersPad.y+3,15);
txtLine(computersPad.x,computersPad.y,computersPad.x,computersPad.y+3,15);
}
/*********************************
* removeBall()
********************************/
void removeBall()
{
//Sleep( 9 );
txtPlot( ball.x,ball.y,0);
txtLine(PlayersPad.x,PlayersPad.y,PlayersPad.x,PlayersPad.y+3,0);
txtLine(computersPad.x,computersPad.y,computersPad.x,computersPad.y+3,0);
}
/*********************************
* gameLogic()
********************************/
void gameLogic()
{
/* update ball's x location */
ball.x+=ball.headingX;
/* update ball's y location */
ball.y+=ball.headingY;
/* if ball at most right of screen then reverse ball's x heading */
if( (ball.x>PONG_SCREEN_RIGHT) )
{
ball.headingX=-ball.headingX;
computersScore+=10;
}
/* check if ball's location at top or bottom of screen,if true reverse ball's y heading */
if( (ball.y<PONG_SCREEN_TOP) || (ball.y>PONG_SCREEN_BOTTOM-2) ) ball.headingY=-ball.headingY;
PlayersPad.LEFT=PlayersPad.y-3;
PlayersPad.RIGHT=PlayersPad.y+5;
/* check if ball lands on pad, if true bounce back */
if ( (ball.y>= PlayersPad.LEFT) && (ball.y<= PlayersPad.RIGHT) && (ball.x==PlayersPad.x))
{
ball.headingX=-ball.headingX;
playersScore+=10;
}
/* let computer track ball's movement */
if (ball.x>PONG_SCREEN_RIGHT-18) computersPad.y=ball.y;
/* if cheat enabled,let player track ball's movement */
if (autoPlay>0)
{
if (ball.x<PONG_SCREEN_RIGHT-50) PlayersPad.y=ball.y;
if (ball.x>PONG_SCREEN_LEFT+16)
{
if (PlayersPad.y<10) while (PlayersPad.y<10) PlayersPad.y++;
if (PlayersPad.y>12) while (PlayersPad.y>10) PlayersPad.y--;
}
}
/* check if ball misses pad, if true display you missed */
if (ball.x<PONG_SCREEN_LEFT)
{
displayYouMissed();
ball.x=75;
ball.y=15;
computersScore+=10;
}
}
/*********************************
* initGame()
********************************/
void initGame()
{
playersScore=0;
computersScore=0;
ball.x=15;
ball.y=5;
ball.headingX=1;
ball.headingY=1;
PlayersPad.x=5;
PlayersPad.y=12;
computersPad.x=75;
computersPad.y=12;
displayCheatEnabled();
setcolor(15);
clrscr();
txtLine(6,0,74,0,1);
txtLine(6,22,74,22,1);
txtLine(6,23,74,23,1);
autoPlay=1;
if (autoPlay>0)
{
setcolor(79);gotoxy(62,23);printf("cheat on " );setcolor(15);
}
else
{
setcolor(79);gotoxy(62,23);printf("cheat off " );setcolor(15);
}
setcolor(31);gotoxy(62,22);printf("<F1> Help" );setcolor(15);
}
void displayHelp()
{
clrbox(10,8,70,16,79);
box(10,8,70,16,31,79,"Pong Game, Player vs Computer");
gotoxy(18,10);cprintf("Controls ");
gotoxy(18,11);cprintf("<LEFT> move pad left");
gotoxy(18,12);cprintf("<RIGHT> move pad right");
gotoxy(18,13);cprintf("<TAB> cheat mode ON/OFF");
gotoxy(18,15);cprintf("press any key to continue");
keypress =getch();
clrbox(10,8,75,21,0);
}
void displayYouMissed()
{
clrbox(10,8,70,16,79);
box(10,8,70,16,31,79,"You missed");
gotoxy(18,10);cprintf(" ");
gotoxy(18,11);cprintf("The ball has missed the paddle");
gotoxy(18,12);cprintf("press press space to continue");
gotoxy(18,13);cprintf("");
gotoxy(18,14);cprintf("");
keypress =getch();
clrbox(10,8,75,21,0);
}
void displayCheatEnabled()
{
clrbox(10,8,70,16,79);
box(10,8,70,16,31,79,"Player vs. Computer");
gotoxy(15,10);cprintf("The Cheat' pad will track ball movement' is enabled");
gotoxy(15,11);cprintf("press <TAB> to enable or disable the cheat.");
gotoxy(15,13);cprintf("press press space to continue");
gotoxy(18,14);cprintf("");
gotoxy(18,14);cprintf("");
keypress =getch();
clrbox(10,8,75,21,0);
}
/*********************************
* Keypressed()
********************************/
void Keypressed()
{
if (kbhit())
{
keypress =getch();
switch (keypress )
{
case key_F1:
displayHelp();
break;
case key_LEFT:
case key_RIGHT:
break;
case key_UP:
PlayersPad.y-=3;if (PlayersPad.y<0) PlayersPad.y=0;
break;
case key_DOWN:
PlayersPad.y+=3;if (PlayersPad.y>18) PlayersPad.y=18;
break;
case key_ENTER:
break;
case key_SPACE:
break;
case key_TAB:
autoPlay=-autoPlay;
if (autoPlay>0)
{
setcolor(79);gotoxy(62,23);printf("cheat on " );setcolor(15);
}
else
{
setcolor(79);gotoxy(62,23);printf("cheat off " );setcolor(15);
}
break;
}
}
}
/*********************************
* Render_Game_At_60_Frames_Per_Second()
********************************/
void Render_Game_At_60_Frames_Per_Second()
{
NewTicksPerSecond=GetTickCount();
DeltaTicksPerSecond=NewTicksPerSecond-OldTicksPerSecond;
frames++;
if(DeltaTicksPerSecond>=PreferredFramesPerSecond)
{
OldTicksPerSecond=NewTicksPerSecond;
InverseFramesPerSecond=1/((float)PreferredFramesPerSecond/1000.0f);
OneFramePerSecond=(float)frames*InverseFramesPerSecond;
fps+=OneFramePerSecond;
fps/=2;
setcolor(31);gotoxy(70,22);printf(" %d FPS ",DeltaTicksPerSecond );setcolor(15);
frames=0;
Refesh=60/fps;
}
Sleep(3);
}
//*****************************************************************************
//* *
//*****************************************************************************
void gotoxy(int x, int y)
{
COORD coord;
coord.X = x; coord.Y = y;
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
return;
}
//*****************************************************************************
//* *
//*****************************************************************************
void setcolor(WORD color)
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),color);
return;
}
//
// colors:
// 0 = Black
// 1 = Blue
// 2 = Green
// 3 = Cyan
// 4 = Red
// 5 = Magenta
// 6 = Yellow
// 7 = LightGray
// 8 = DarkGray
// 9 = LightBlue
// 10 = LightGreen
// 11 = LightCyan
// 12 = LightRed
// 13 = LightMagenta
// 14 = LightYellow
// 15 = White
//
void setForeGroundAndBackGroundColor(int ForeGroundColor,int BackGroundColor)
{
int color=16*BackGroundColor+ForeGroundColor;
setcolor(color);
}
//*****************************************************************************
//* *
//*****************************************************************************
void clrscr()
{
COORD coordScreen = { 0, 0 };
DWORD cCharsWritten;
CONSOLE_SCREEN_BUFFER_INFO csbi;
DWORD dwConSize;
HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
GetConsoleScreenBufferInfo(hConsole, &csbi);
dwConSize = csbi.dwSize.X * csbi.dwSize.Y;
FillConsoleOutputCharacter(hConsole, TEXT(' '), dwConSize, coordScreen, &cCharsWritten);
GetConsoleScreenBufferInfo(hConsole, &csbi);
FillConsoleOutputAttribute(hConsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten);
SetConsoleCursorPosition(hConsole, coordScreen);
return;
}
//*****************************************************************************
//* *
//*****************************************************************************
void box(unsigned x,unsigned y,unsigned sx,unsigned sy,unsigned char col,unsigned char col2,char text_[])
{ unsigned i,j,m;
{
m=(sx-x); //differential
j=m/8; //adjust
j=j-1; //more adjustment
gotoxy(x,y);cprintf("É"); //Top left corner of box
gotoxy(sx,y);cprintf("»"); //Top right corner of box
gotoxy(x,sy);cprintf("È"); //Bottom left corner of box
gotoxy(sx,sy);cprintf("¼"); //Bottom right corner of box
for (i=x+1;i<sx;i++)
{
gotoxy(i,y);cprintf("Í"); // Top horizontol line
gotoxy(i,sy);cprintf("Í"); // Bottom Horizontal line
}
for (i=y+1;i<sy;i++)
{
gotoxy(x,i);cprintf("º"); //Left Vertical line
gotoxy(sx,i);cprintf("º"); //Right Vertical Line
}
gotoxy(x+j,y);cprintf(text_); //put Title
gotoxy(1,24);
}
}
//*****************************************************************************
//* *
//*****************************************************************************
void clrbox(unsigned char x1,unsigned char y1,unsigned char x2,unsigned char y2,unsigned char bkcol)
{
int x,y;
setcolor(bkcol); //Set to color bkcol
for (y=y1;y<y2;y++) //Fill Y Region Loop
{
for (x=x1;x<x2;x++) //Fill X region Loop
{
gotoxy(x,y);cprintf(" "); //Draw Solid space
}
}
}
//*****************************************************************************
//* *
//*****************************************************************************
void putbox(unsigned x,unsigned y,unsigned sx,unsigned sy,
unsigned char col, unsigned char col2,unsigned char bkcol,char text_[])
{
clrbox(x,y,sx,sy,bkcol);
box(x,y,sx,sy,col,col2,text_);
}
//*****************************************************************************
//* *
//*****************************************************************************
void txtPlot( unsigned char x, unsigned char y, unsigned char Color)
{
setcolor(Color);
gotoxy(x,y);cprintf("Û");
}
//**********************************************
//** **
//**********************************************
void txtSwap(int first, int second )
{
int temp ;
temp = first;
first = second;
second = temp;
}
void txtCircle(int X, int Y, int rad, int col)
{
float deg = 0;
do {
X = (int) (rad * cos(deg));
Y = (int) (rad * sin(deg));
txtPlot (40+X, 12+Y, col);
deg += 0.005;
}
while (deg <= 6.4);
}
//**********************************************
//** **
//**********************************************
void txtLine(int x0, int y0, int x1, int y1, int color)
{
int pix = color;
int dy = y1 - y0;
int dx = x1 - x0;
int stepx, stepy;
if (dy < 0) { dy = -dy; stepy = -1; } else { stepy = 1; }
if (dx < 0) { dx = -dx; stepx = -1; } else { stepx = 1; }
dy <<= 1; // dy is now 2*dy
dx <<= 1; // dx is now 2*dx
txtPlot( x0, y0,pix);
if (dx > dy) {
int fraction = dy - (dx >> 1); // same as 2*dy - dx
while (x0 != x1) {
if (fraction >= 0) {
y0 += stepy;
fraction -= dx; // same as fraction -= 2*dx
}
x0 += stepx;
fraction += dy; // same as fraction -= 2*dy
txtPlot( x0, y0,pix);
}
} else {
int fraction = dx - (dy >> 1);
while (y0 != y1) {
if (fraction >= 0) {
x0 += stepx;
fraction -= dy;
}
y0 += stepy;
fraction += dx;
txtPlot( x0, y0,pix);
}
}
}
//**********************************************
//** **
//**********************************************
void delay(unsigned int milliseconds)
{
clock_t ticks1, ticks2;
unsigned int tic1=0,tic2=0,tick=0;
ticks1=clock();
while(tick<milliseconds)
{
ticks2=clock();
tic1=ticks2/CLOCKS_PER_SEC-ticks1;
tic2=ticks1/CLOCKS_PER_SEC;
tick=ticks2-ticks1;
}
ticks2=clock();
}
